2121222202012 has 12 divisors (see below), whose sum is σ = 3798467664376. Its totient is φ = 1035945726480.

The previous prime is 2121222201997. The next prime is 2121222202051. The reversal of 2121222202012 is 2102022221212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6166343439 + ... + 6166343782.

Almost surely, 2^{2121222202012} is an apocalyptic number.

It is an amenable number.

2121222202012 is a deficient number, since it is larger than the sum of its proper divisors (1677245462364).

2121222202012 is a wasteful number, since it uses less digits than its factorization.

2121222202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12332687268 (or 12332687266 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2121222202012 its reverse (2102022221212), we get a palindrome (4223244423224).

The spelling of 2121222202012 in words is "two trillion, one hundred twenty-one billion, two hundred twenty-two million, two hundred two thousand, twelve".